Eyeleting-machine.



W. SHAW.

EYELETING MACHlNE.

APPLICATION FILED MAR.8, 1915.

Patented July 9, 1918.

2 SHEETS-SHEET I.

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W. SHAW.

EYELETING MACHINE.

APPLICATION FILED MAR. 8, 1915 1 ,271 ,721 Patented July 9, 1918-. Y

2 SHEETS-SHEET 2.

WALTER SHAW, OF DEDHAM, MASSACHUSETTS,

TO UNITED SHOE MACHINERY CORPORATION,

PORATION OF NEW JERSEY.

1 area.

ASSIGNOR, BY MESNE ASSIGNMENTS,

EYELETING-MACHINE.

Specification of Letters Patent.

Patented July e, was.

Application filed March 8, 1915. Serial N 0. 12,877.

To all whom it may concern:

Be it known that I, VALTER SHAW, a citizen of the United States,residing at Dedham, in the county of Norfolk and State of Massachusetts,have invented certain Improvements in Eyeleting-Machines, of which thefollowing description, in connection with the accompanying drawings, isa specification, like reference characters on the drawings indicatinglike parts in the .several figures.

This invention relates to improvements in machines for setting eyeletsor similar fastening devices and particularly to machines for settingblind or invisible eyelets.

In one of its aspects the invention contemplates improvements in themachine disclosed in application Serial No. 859,632, Kenway, filedSeptember 1, 1914, in which there is disclosed an expansible upsettingdie arranged to be passed through the work in a contracted condition andthen expanded into the proper shape for upsetting the eyelet barrel. Asherein shown the upsetting die comprises a number of relatively movablesections. These are arranged in contact with each other in the normalcontracted condi-- tion of the die but when the latter is expandednarrow open spaces occur between the adjacent sections. In the upsettingoperation it is important that the lines of division or splits in theeyelet barrel shall not occur in such locations as to permit any portionof the eyelet barrel to pass through between the sections of the diewithout being acted upon by the upsetting surface.

With these conditions in View, an important feature of the presentinvention consists in the provision of an expansible setting diecomprising relatively movable sections,.each section having means forsplitting an eyelet barrel at a point located between the open spaces ofthe expanded die. By. employing a die of this construction each sectionof the split eyelet barrel is acted upon by two sections of the expandeddie. Consequently the portion of the barrel opposite the open spacebetween the sections of the die will follow the direction of the bendingimparted by the die sections to the remainder of the split'sec tion ofthe barrel. Another advantage incident to this construction is that theeyelet barrel is split into uniform sections so that the shape of theclenched end is rendered symmetrical and the clenching of uniformcharacter.

In machines employing an expansible upsetting die as heretoforeconstructed the operative or upsetting position of the expansible diehas been determined by a member OF PETERSON, NEW JERSEY, A COR- whichengaged the upper end of the die and which for this purpose was passedthrough the superposed portion of the upper. Another important featureof the present invention consistsin novel means arranged to act uponthat side of the work from which the die is inserted for determining theupset,-

ting or operative position of the die. An

advantage incident to this construction is that the limit of movement ofthe die with respect to the work may be determined and the possibilityobviated of the die being advanced into the outer portion of the upperafter the clenching operation. This has sometimes occurred in machinesof this type as heretofore constructed and is objection- I able in thatit tends to enlarge the hole in the outer part of the upper and also todelay the operation of the machine. An advantage incident to theconstruction herein shown is that the setting die, which is necessarilyof.

delicate construction, is relieved of the pressure and strain whichwould be incident to the control of its position by pressure upon itsexpansible end. It also renders possible an accurate adjustment of theupsetting position of the die with respect to the work being operatedupon and this is of considerable importance in view of the factthat-uppers are frequently encountered provided with stay strips,doubling cloth or other intermediate layers of materials, the presenceor absence of which affects the thickness of the work in which'it isdesired to clench the eyelet.

Still another feature of the invention consists in arranging the meansfor controlling Y es ment further relieves the pressure upon theexpansible portions of the die and the con trolling means may beconstructed to act at a point where the structure of the die renders itbetter suited to stand the strain.

As herein shown the upsetting die is expanded by being brought intoengagement with a tapering member which is moved into "the work from theside opposite to that upon which the expanding die is located. Itisdesirable, in order to spare the die as much as possible, to reduce theimpact of engagement of these two members to a minimum.

To this end another feature of the invention consists in so operatingthese members that they come into substantial engagement while they aremoving in the same direction. In the illustrated embodiment of theinvention this result is secured by imparting to the expanding member atemporary retreating movement during the advance movement of theupsetting die and at a less speed than that of the upsetting die.

Another feature of the invention consists in the provision of anexpansible setting die having a passage extending through its centerportion-by which the fine pieces of material, chips, or other materialloosened in the operation of the machine may pass away from theexpansible portion of the die thereby avoiding clogging of the same.This feature of the construction is important because any obstructionlodging between the sections of the expansible die would prevent thecontraction thereof so that the die could not be passed through thebarrel of an eyelet preparatory to the setting operation.

It is desired in setting blind eyelets boots and shoes to form in theouter part of the upper a hole of the smallest practical diameter topermit the passage of the lacing and in many cases a hole of lessdiameter than the eyelet is desired. In this connec;' tion anotherfeature of the'invention con-- sists in provision of novel punchlngmechanism by the useof which the holein the pertion in which the eyeletis to be set may be formed with a greater diameter than the concentrichole formed in the superposed portion of the upper.

Heretofore this has i been possible only by the employment of oppositelydisposed abutment' This abutseparate punches of difierent diameters. Asherein shown, however, a punching mem her having an abrupt taper islocated on that side of the work from which the eyelet'is to to beinserted and the work is punched by being'engaged between this punch andan ment, being located above the work and having a diameterapproximating that of Y the punch, helps the operatorin locating theWork with respect to the machine so that. be may accurately determinetheflposition in which a fastener will be inserted.

These and other features of the invention of the machine in furtherdetail.

will be best understood and appreciated from the following descriptionof' a preferred embodiment thereof selected for purposes of illustrationand shown in the acin its expanded position with an eyelet par-' tiallyclenched;

Fig. 5 is asectional view of the punching members; I

Fig. 6 is a fragmentary view of part of the upsetting die and'itsassociated stop;

Figs. 7 to 13 illustrate the successive steps of the punching"- andeyeleting operations and disclose the construction of certain parts Forpurposes of illustration the invention is shown as embodied in thewell-known universal eyeleting machine, shown substan-,

tially in United States'Letters Patent No. 603,023, Field, but it willbe apparent that any other eyeleting machine would serve the samepurpose.

The machine frame 2 is provided with 'a stationary work table 4 and witha bearingmember 6 in which reciprocates the plunger 8. The eyeletcarrying or inserting die 10 is adjustably mounted in the upper end ofthe plunger 8 while at its lower end the plunger carries a cam roller-14to which motion is imparted by a rotary cam 12 secured to the mam shaft9. As shown in Fig. 7

the'die 10 is shouldered and rests upon an adjustable supporting nut 11threaded into a I theplunger 8 and maintained in adjusted position by alocking nut 13. A presser foot 31 of the usual construction is providedfor holding the work in place-upon the table 4.

The upsetting die 16 is movably' mounted w thin t e die 10 beingprovided with a shank 18 and a head 20 on its lower end beneath which islocated a compression spring 22 tending always to maintain the upsettingdie in an elevated position. The upper portion of the upsetting die isof suitable diameter to be passed through the barrel of an eyeletpresented thereto by a raceway 30. The upsetting-surface is formed justbelow the upper end of the die where the latter is contracted and thenflared outwardly. It

- will be understood thatthe eyelet is passed 'shown in Fig. 2, and thatthe die is subsequently expanded so that itsupsetting surface is of theproper shape to clench the eye- 'let barrel when the eyelet is forcedupwardly against it.

In order to insure the splitting of the eyelet barrel into symmetricalsections and at points located between the spaces of the sections of theexpanded die each of the die sections is provided with a sharp rib orcorrugation 17 as shown in Fig. 3. When the eyelet barrel, therefore, isforced upwardly these ribs act to split it as shown in Fig. 4.

In inserting invisible eyelets the two portions of the upper which havepreviously been punched are held by the work table 4 in alinement withand above the upsetting die 16 and the latter is then elevated until itsupsetting surface has been passed substantially through the lower orlining portion 90 of the upper as indicated in Figs. 11 to 13. In orderto determine this upsetting position of the die 16 there is'provided anadjustable stop piece 24 having its upper end arranged to projectthrough a slot in the plunger 8 and to engage the shank 18 of theupsetting die above its head 20 as shown in Fig. 6. The stop piece isfrictionally 26 upon which is adjustably secured a nut 28 arranged toengage the lower surface of the stationary bearing member 6 when thestop piece 24 has been lifted to a predetermined position. In thedownward move- 1 ment of the plunger 8 the upper end of the slot thereinengages the top of the stop piece 24 and depresses it to its'lowestposition as shown in Fig. 7. In the upward movement of the plunger 8the.stop piece is elevated by the action of the spring 22 until the nut28 encounters the surface of the stationary bearing member 6 whereuponthe upward movement of the stop piece and the upsetting die ispositively arrested at a predetermined point detefmined by the settingof the nut 28. It will be seen that this construction afl'ordsconvenient and accurate means for-controlling the operative position ofthe upsetting die.

As shown in Figs. 6, 7 and 11 the upsetting die 16 has a hole drilledentirely through its center portion for the purpose of affording apassage for chips or other obstructions which might become lodgedbetween the relatively movable sections of the die.' This passage opensabove the center of the spring 22 in the plunger 8 and the latter may becleaned of the accumulation deposited through the passage as often asnecessary.

The upsetting die 16 is expanded by a pin 32 having at its lower end aconical portion shaped to enter the hole in the, upper end of theupsetting die and to act uniformly on the sections'thereof in expandingthe die. The pin 32 is adjustably and yieldingly maintained in the headof a lever 34 by means of two filling pieces 36 and 38. The upper piece36 is threaded into the lever 34 and at its lower end is provided with arecess for 'the reception of a compression spring 40 which bears againstthe head of the pin 32. At its lower end the piece 36 is internallythreaded to receive the upper end of the piece 38 and thev set screw 42is provided for locking the latter in adjusted position. The pin 32 maybe adjusted downwardly by loosening the set screw 42 and screwing thefilling piece 36 downward, together with the lower filling piece 38. A

look nut 37 is provided for maintaining the piece 36 in the properadjusted relation to the lever 34. The initial position of the pin 32may bevaried independently of the bodily adjustment just described byscrewing the lower filling piece 38 upwardly into the filling piece 36.The best results are secured by so adjusting the position of the V pin32 that the compression of thespring 40 is sufficient to hold the pin 32in its 'dle ex pa-nding position when the head of the lever 34 isdepressed. With such adjustment the pressure upon the upsetting die inthe expanding operation is limited to that which is merely suflicienttoovercome the resiliency of the die sections.

When embodied in a high speed machine the upsetting die 16 and theexpanding pin 32 are likely to come intoengagement with considerableimpact and in order to reduce this to a minimum the pin 32 is arrangedto be initially projected entirely through both portions of the upper asshown in Figs. 9

and 10. When the upsetting die is elevated the pin 32.is moved upwardlybut at a slower speed so that the two come into substantial engagementwhile they are both moving in the same direction. The pin 32 isthereupon moved slightly downwardly to effect the expanding operation.By this mode of operation-the impact of the two members is rendered soslight as to be unobjectionable.

The lever. 34, which carries the expanding pin 32, corresponds to thetopset lever of the machine of Patent No. 603,023 above identified. Themotions required for moving the pin 32 in the manner above set forth areimparted. to the lever 34 by cams on the rear end of the shaft 9 similarto those I shown in said patentbut shaped in accordance with therequirements of the present inventlon.

f Preliminarily to the insertion of the eye .let the work is punched atone side of the setting position by mechanism which will now bedescribed. The-work plate 4 is slotted to permit the passage of atubular punch.

50 fast in the forward end of a lever 52. The punch 50 is moved towardthe right to an inoperative position prior-to the feeding operation andthen back to its initial position during the feeding operation. At itsupper end the punch is abruptlytapered as shown in Fig. 5 so that thehole formed in end of a lever 60 arranged tooscillate at the right handside of the lever 34.- This abutment has a diameter which. approximatesthat of the punch-and, being located above the work, assists inthe-ready location of the work with respect to the machine. Furthermore,the position of the abutment is adjusted in response to an adjustment ofthe length of feed so that its adjusted position always accuratelyrepresents the point at which the next eyelet will beset. The positionof the punch is also adjusted so that it will always co-act with thesuperposed abutment. In order to strip the work from the punch after thepunching operation a collar 56 is arranged to surround the upper end ofthe punch and is normally maintained in its elevated position by acompression sprmg 54.

The usual operation of the machine above described may be stated asfollows: The upper comprising a lining portion 90 and an outer portion92 is presented upon the work table 4 with the point at which the firsteyelet is to be' set located between the punching members 50 and 58. Theinitial position of the various parts is shown in Fig. 7. When themachine isstarted the abutment member 58 is at once depressed and bothportions of the work forced down upon the punch 50 as shown in Fig. 8.The abutment member 58 is immediately elevated and the stripper 56 liftsthe work off the punch. The punching members and the die expanding pin32 are thereupon moved to the rightand the pin is depressed to enter andpass entirely through both portions ofv the work as shown in Fig. 9. Thefeeding operation is then effected by the transverse movement of the pin32 toward the left, the. punching members being meanwhile re.-. .turnedto their initial position.- The position of the punching and settinginstrumen-' than the diam acts to arrest the upward movement of theupsetting die. This occurs when the up setting surface is located inposition to direct the clenched end of the eyelet barrel outwardlybetween the two portions of the upper as shown in Fig. 11. The lever 34is then depressed slightly to move the pin 32 into its die expandingpositlon as shown in Fig. 12. The continued u ward movement of. theeyelet inserting set 10 then forces the eyelet upwardly clenching itsbarrel against the upsetting surface and beneath the outer portion 92 ofthe upper as shown in Fig. 13

At the conclusion of the setting operation the expanding pin is liftedallowing the upsetting die to contract whereupon the parts are restoredto their initialpositions in readiness for a repetition of the cycle.

, Having thus described my invention, I claim as new and. desiretosecure by Letters Patent of the United States:

1. In an eyeleting-machine, an expansible setting die comprisingrelatively movable. sections, each section having means for splitp tingan eyelet barrel at points located between the open spaces of theexpanded die.

2. In an eyeleting machine, an expansible upsetting die having sharpedges formed by intersecting concave surfacesand'. disposed v forlongitudinally splitting an eyelet barrel.

3. In an eyeleting machine, an expansible upsetting die havlng outwardlydisposed splitting edges normally contracted to less means for expandingthe die prior to the setting operation. a

4. In an eyeletin machine, an expansible upsettin die having outwardlydisposed longitudinal splitting ed es, and means for after t has beenpassed expanding the. die into a hole in the work.

'5. In an eyeleting machine, an expansible- .115 each provided betweenits longitudinal edges with 'a longitudinally.

upsetting d1e"comprismg a plurality of resilient sections,

disposed splitting projection.

6. In an eyeleting machine, an expansible" upsetting 'di'e'comprising aplurality of relatively movable sections each having a sharp rib spacedfrom its edges, and means for separating the sections.

"ter of .theeyelet barrel, and" In an eyeleting machine, an expansiblesetting die yielding means for expanding .125 the die, an positivelyacting means for limdie-expanding means.

8. In aneyeleting machine, an expansible.

setting die, yielding means for expanding the die, and adjustable meansfor limiting the pressure exerted in the expanding operation.

9. In an eyeleting machine, an expansible setting die comprisingrelatively movable sections, and means for splitting an eyelet barrel sothat eachseotion of the barrel is acted upon by two sections of the die.

10. In an eyeleting machine, a work support, a movable eyelet insertingset and an upsetting die both initially located on the same side of thework as the support, and means disposed below the work'support fordetermining the setting position of the upsetting die.

11. In an eyeleting machine, anexpansible upsetting die, acombinedfeeding and die expanding member, and independent means forcontrolling the operative position of the upsetting die.

12. In an eyeleting machine, a punch, a feed member arranged to enterthe punched hole, an expansible upsetting die arranged to be expandedbythe feeding member, and stationary means for controlling the operativeposition of the upsetting die.

13. In an eyeleting machine, means located on one side of the work forpunching and feeding the same, cooperating dies both located initiallyon the other side of the work for insertin and upsetting an eyelet, anda. device in ependent of the feeding means for controlling the operativeposition of the upsetting die. I

14. In an eyeleting machine, a reciprocatory plunger carrying relativelymovable inserting and upsetting dies, and a stationary stop arranged toproject into the plunger "to arrest the movement of one of the dieswhile the other continues to move.

15. In an eyeleting machine, an expansible die and a die-expandingdevice arranged for relative movement, and means independent of thedie-expanding device for limitin such relative movement.

16. 11 an eyeleting machine, an expansible' die, a die-expanding devicemovable into operative engagement therewith, and means for limiting thepressure of engagement.

17. In an eyeleting machine, an expansible upsettin die, and adie-expanding device arrange for simultaneous movement in the samedirection but at difierent speeds, where by they may be brought intoengagement with slight impact.

18. In an eyeleting machine, eyelet setting tools, and a work feedingmember constructed and arranged to be inserted in the work preparatoryto the feeding operation hole in the lining portion larger than that inthe outer portion, and means for inserting,

' an eyelet in the larger hole and clenching it upon the lining.

22. In an eyeleting machine, a tapered punch movable toward the liningside of an upper to punch both the lining and the outer portionsthereof, and means for presenting an eyelet from the lining side of theupper.

23. In an eyeleting machine, a tapered punch movable to form a conicalhole in the superposed portions of an upper, and an expanding upsettingdie movable into the large end of the hole.

24. In an eyeleting machine, a tapering punch for perforating both theleather and lining parts of an upper from the lining side, therebyforming a larger hole in the lining than in the leather part, anupsetting die movable through one part of the upper, and an eyeletinserting set constructed and arranged to insert an eyelet through thelining.

25. In an eyeleting machine, an eyelet inserting die having a spindlecentrally located and shaped at its upper end to constitute an upsettindie, and means acting on the lowerend o the spindle to determine thesetting position thereof.

26. In a machine for setting fasteni devices, a work support, a tubularpunc located below the plane of the work support, a cooperating solidabutment of similar cross-sectional dimensions located opposite to thepunch and above the work support,

, sald punch and abutment being constructed port, work feeding means, anexpansible upsetting die arranged to enter the work upon the supportfrom the lower side of the work, and means for positively preventingupward movement of the upsetting die at the con clusion of the settingoperation.

29. In a fastener insertin machine, a tubular punch and a co-actmgabutment having a diameter approximating that of the punch disposed onopposite sides of the work, with the punch on the lower side of thework, said tools being constructed and arranged for movement intoco-acting relaone of said tools being arranged for lateral adjustmentwith respect to the machine, 15

when the spacing between successive fasteners is varied.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WALTER SHAW. Witnesses:

HERBERT W. KENWAY, WILLIAM B. KING.

